Tenon-forming machine for wheel-spokes.



E. '8: E. E. DAVIS.

TENON FORMING MACHINE FOR WHEEL SPOKES.

APiLIOATION rmm ma. 9, 1909.

941,625. Patented Nov. 30, 909.

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EDWARD DAVIS AND ELMEP. E. :oAvis, or SUGARGROVE, PENNSYLVANIA.

lTENON-FORMING MACHINE FOR WHEEL-SPOKES.

Specification of Letters Patent.

Patented Nov. 30, 1909.

Application filed February 9, 1909. Serial No. 477,012.

To all whom it may concern:

Be it known that we, EDWARD DAVIS and ELMER E. DAVIS, citizens of the United States, residing at Sugargrove, in the county of Warren and State of Pennsylvania, I

ciently operating means of this kind, whereby the wheel spokes may be successively arranged in position for the forming operation, and whereby the forming means proper may be shifted into and out ofoperative position.

With the foregoing and other objects in view, the invention consists of certain novel features of construction, combination and arrangement of parts as will be more fully described and particularly pointed out in the appended claims.

In the accompanying drawings, Figure 1 is a plan view of a device constructed in accordance with the invention; Fig. 2 is a view in side elevation of Fig. 1; Fig. 3 is a longitudinal sectional view taken on the plane indicated by the dotted lines 3-3 of' Fig. 1; and Fig. 4 is a cross sectional View taken on the line 44 of Fig. 2.

Referring to the drawings which are for' illustrative purposes only, and are therefore not drawn to scale, the numeral 1 indicates a suitable supporting frame or structure on one end of which is fixedly mounted a supporting block 2 formed at its inner end with a relatively thin supporting portion 3, the purpose of which will be disclosed.

A longitudinally disposed shaft 4 is retatably mounted on block 2, a crank wheel 1 being arranged at the outer end of said shaft for imparting movement to the same. The outer end of said shaft may be also provided with fast and loose pulleys 5 and 6, respectively, so that the shaft may be driven by any suitable source of power.

A vertically disposed adjusting screw 7 is operatively mounted in a suitable support 8 arranged under the table and at the end thereof opposite the shaft 4, the upper end of said screw loosely engaging a supporting block 9 formed with a central up-right lug or extension 10 to which is hingedly connected a forked extension 11, formed at the lower end of a vertically disposed wheel supporting rod 12. This rod is also provided with an outwardly extending annular flange 13, at its lower end to receive one end of the wheel hub and with a thread 14 at its upper end.

In practice, the hub of the wheel is engaged with the supporting member 12 and the wheel is fixed against movement by a clamping member 15 screwing on the thread 14 of the supporting member. A longitudinally disposed brace 16 is pivotally connected at its inner end with the supporting block 9 and has its outer end extending through a guide opening formed in a suitable upright guide 17, and holds the block against rotation.

An upright support 18 is fixedly mounted on the bearing plate 3 of the supporting block 2 and an upright rest 19 is adjustably secured to said support, the upper end of the rest being forked to receive the spokes of the wheel. A clamping member 20 is pivotally connected to one arm of the rest and is designed to fit over or clamp any of the several spokes of the wheel to maintain the same in engagement with the forked end of the rest. A shifting lever 21 is pivoted near its inner end to the upper end of a support 22 fixed to the supporting block 2, the extreme inner end of the lever being loosely connected with the shaft 4. This lever is designed to shift the shaft 4 into and out of operative or tenon forming position. The inner end of the shaft 4 is formed with a socket 23 to receive one end of a suitable tool for forming the tenons on the wheel spokes.

In practice, a wheel having been arranged on the wheel supporting rod 12, with one of the spokes engaging the rest 19, the shaft 4 is shifted inwardly by the shifting lever 21 to engage the tool with the end of the adjacent spoke. The shaft 4 is then driven or rotated manually or by any other power, not shown, to form the tenon on the spoke. After the tenon has been thus formed the shaft 4 is shifted outward to an inoperative position and the wheel turned to place the next spoke in position in the rest as desired. The shaft is then shifted into operative position to form a tenon on this spoke. The above operation is continued until all the spokes of the Wheel have been successively engaged with the rest and each formed with a tenon. By hingedly mounting the Wheel support 12 on the supporting block 9, as shown, the Wheel may be tilted in an inclined position to disengage the spoke from the rest and to permit of the insertion of the next spoke in the rest.

From the foregoing description, taken in connection With the accompanying drawings, the construction and operation of the invention will be readily understood without requiring a more extended explanation.

Various changes in the form, proportion and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention as defined in the appended claims.

Having thus described our invention,what we claim as new and desire to secure by Letters-Patent is:

1. In a tenon forming machine, a supporting frame, a. slotted guide arranged at one end thereof, a Wheel supporting block, a brace pivoted to said block and extending through the guide plate to hold the former against rotation, means to adjust said block vertically, a Wheel supporting rod provided at its lower end With a horizontal hub supporting flange and at its upper end with an exterior thread pivoted to the upper end of said supportlng block, a hub clamping nut screwing on the upper end of said rod, a

tool carrying shaft and an adjustable spoke holding device interposed between the wheel holding rod and said shaft to receive the end of the spoke to be tenoned.

2. A device of the class described comprising a supporting frame, a. support at one end thereof, a wheel supporting block, an adjusting rod screwing through said support against said block, av wheel supporting rod pivoted to said supporting block a horizontal flange at the lower end of said rod, a hub clamping member screwing on the upper end of said rod, means to hold the wheel supporting block against rotation, a tool carrying member, an operating shaft, a vertically adjustable spoke holding device between the wheel holding deviee and the tool carrying device, and an operating shaft to receive the end of the spoke to be operated on.

In testimony whereof we have hereunto set our hands in presence of two subscribing witnesses.

EDWARD DAVIS. ELh IER E. DAVIS. Vitnesses ANDREW SMITH, F RANK ABBOTT. 

